Threading Machine Die Head Maximum Compatible Pipe Size 2 in Minimum Compatible Pipe Size 1/4 in Head Opening Type Self-Opening Thread Type NPT Compatible Thread Direction Right Hand Compatible Dies Universal Compatible Threader Type Threading Machine Compatible Threader Series 1224 Compatible Manufacturer Part Number 26092 26097 29858 Through-the-Head Oiling Yes Application Pipe Compatible Grainger Part Number 4CW39 Die Head Type Universal Features Self Opening